feat: hide the header menu when there is no content in it

[jikkai]

• I am sure that the code is update-to-date with the dev branch.

[github-actions]

View Deployment

📑 Examples	📚 Storybook
🔗 Preview link	🔗 Preview link

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (492f0e1) 29.53% compared to head (d8a858a) 29.53%.

Files	Patch %	Lines
...kages/ui/src/views/components/doc-bars/Toolbar.tsx	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1331      +/-   ##
==========================================
- Coverage   29.53%   29.53%   -0.01%     
==========================================
  Files         842      842              
  Lines       47849    47852       +3     
  Branches     9792     9795       +3     
==========================================
  Hits        14131    14131              
- Misses      33718    33721       +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.